| 拉杆结构非线性接触的刚度融合修正方法 |
| |
| 引用本文： | 张子阳,谢寿生,钱征文,龙门,彭靖波. 拉杆结构非线性接触的刚度融合修正方法[J]. 汽轮机技术, 2011, 0(4) |
| |
| 作者姓名： | 张子阳 谢寿生 钱征文 龙门 彭靖波 |
| |
| 作者单位： | 空军工程大学工程学院;空军工程大学电讯工程学院; |
| |
| 基金项目： | 国家博士后科学基金(20100481498) |
| |
| 摘 要： | 为建立更加准确的航空发动机高压转子的有限元模型,对表征高压转子拉杆结构中盘与盘之间接触的力学模型进行研究,引入包含库伦摩擦力的非线性弹塑性滑动模型对该类接触进行描述。提出弹簧刚度矩阵和有限元模型整体刚度矩阵的融合修正方法,建立了有限元刚度的整体优化模型。运用拉直算子将模型中需要修正的参数分离出来,结合实验模态参数对有限元模型刚度进行了修正。以实际航空发动机高压转子为例,通过与线性模型的修正结果比较,证明该模型准确描述了拉杆结构的复杂接触,且融合算法是可行且有效的。
|
| 关 键 词： | 修正有限元模型 弹塑性滑动模型 融合算法 拉直算子 实验模态分析 拉杆结构 |
Fusion Stiffness Modification of Spring and FE Modal in Rod Fasten Rotor Base on Non-linear Contacting Model |
| |
| ZHANG Zi-yang,XIE Shou-sheng,QIAN Zheng-wen,LONG Men,PENG Jing-bo. Fusion Stiffness Modification of Spring and FE Modal in Rod Fasten Rotor Base on Non-linear Contacting Model[J]. Turbine Technology, 2011, 0(4) |
| |
| Authors: | ZHANG Zi-yang XIE Shou-sheng QIAN Zheng-wen LONG Men PENG Jing-bo |
| |
| Affiliation: | ZHANG Zi-yang1,XIE Shou-sheng1,QIAN Zheng-wen1,LONG Men2,PENG Jing-bo1(1 The Engineering Institute,Air Force Engineering University,Xi'an 710038,China2 Telecommunication Engineering Institute Air Force Engineering University,Xi'an 710077,China) |
| |
| Abstract: | The scope of this paper lies in FE(finite element) modal updating of high pressure spool in aero engine.By examining the mechanical modals which describe the contacting surfaces between the wheel disks of rod fasten rotor in high pressure spool,it introduced the elasto-slip model with non-linear hysteretic behavior to describe the complex contacting surface.A total optimization modal is developed for a FE modal stiffness updating using a fusion method which combines the modification of stiffness of local pa... |
| |
| Keywords: | finite element modal updating elasto-slip model target fusion straighten algorithm experimental modal analysis rod fasten rotor |
| 本文献已被 CNKI 等数据库收录！ |
|
